CVE-2021-41095

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Source
https://cve.org/CVERecord?id=CVE-2021-41095
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41095.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-41095
Aliases
Published
2021-09-27T20:15:07.267Z
Modified
2026-07-09T14:06:13.494525Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

Discourse is an open source discussion platform. There is a cross-site scripting (XSS) vulnerability in versions 2.7.7 and earlier of the stable branch, versions 2.8.0.beta6 and earlier of the beta branch, and versions 2.8.0.beta6 and earlier of the tests-passed branch. Rendering of some error messages that contain user input can be susceptible to XSS attacks. This vulnerability only affects sites which have blocked watched words that contain HTML tags, modified or disabled Discourse's default Content Security Policy. This issue is patched in the latest stable, beta and tests-passed versions of Discourse. As a workaround, avoid modifying or disabling Discourse’s default Content Security Policy, and blocking watched words containing HTML tags.

References

Affected packages

Git / github.com/discourse/discourse

Affected ranges

Type
GIT
Repo
https://github.com/discourse/discourse
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
b47c5f69d859866c1b42cd316f11dae4270b118f
Introduced
05c1d3c9cdd7f3e365bedc397dd92a7e7bc2c40f
Last affected
f0d2b0f2f08fc201031c85e1669dbd82dcd9b543
Database specific 
{
    "source": [
        "CPE_RANGE",
        "CPE_STRING"
    ],
    "cpe": [
        "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta1:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta2:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta3:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta4:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta5:*:*:*:*:*:*",
        "cpe:2.3:a:discourse:discourse:2.8.0:beta6:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.7.7"
        },
        {
            "introduced": "2.8.0-beta1"
        },
        {
            "last_affected": "2.8.0-beta1"
        },
        {
            "introduced": "2.8.0-beta2"
        },
        {
            "last_affected": "2.8.0-beta2"
        },
        {
            "introduced": "2.8.0-beta3"
        },
        {
            "last_affected": "2.8.0-beta3"
        },
        {
            "introduced": "2.8.0-beta4"
        },
        {
            "last_affected": "2.8.0-beta4"
        },
        {
            "introduced": "2.8.0-beta5"
        },
        {
            "last_affected": "2.8.0-beta5"
        },
        {
            "introduced": "2.8.0-beta6"
        },
        {
            "last_affected": "2.8.0-beta6"
        }
    ]
}

Affected versions

2.*
2.8.0-beta1
2.8.0-beta2
2.8.0-beta3
2.8.0-beta4
2.8.0-beta5
2.8.0-beta6
v0.*
v0.8.0
v0.8.1
v0.8.2
v0.8.3
v0.8.4
v0.8.5
v0.8.6
v0.8.7
v0.8.8
v0.8.9
v0.9.0
v0.9.1
v0.9.2
v0.9.2.5
v0.9.2.6
v0.9.3
v0.9.4
v0.9.5
v0.9.5.1
v0.9.5.2
v0.9.6
v0.9.6.1
v0.9.6.3
v0.9.6.4
v0.9.7
v0.9.7.1
v0.9.7.2
v0.9.7.3
v0.9.7.4
v0.9.7.5
v0.9.7.6
v0.9.7.7
v0.9.7.8
v0.9.7.9
v0.9.8
v0.9.8.1
v0.9.8.10
v0.9.8.11
v0.9.8.2
v0.9.8.3
v0.9.8.4
v0.9.8.5
v0.9.8.6
v0.9.8.7
v0.9.8.8
v0.9.8.9
v0.9.9.1
v0.9.9.10
v0.9.9.11
v0.9.9.12
v0.9.9.13
v0.9.9.14
v0.9.9.15
v0.9.9.16
v0.9.9.17
v0.9.9.18
v0.9.9.2
v0.9.9.3
v0.9.9.4
v0.9.9.5
v0.9.9.6
v0.9.9.7
v0.9.9.8
v0.9.9.9
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.2.4
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v1.3.5
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.5
v1.4.6
v1.4.7
v1.5.0
v1.5.1
v1.5.2
v1.5.3
v1.5.4
v1.6.0
v1.6.1
v1.6.10
v1.6.2
v1.6.3
v1.6.4
v1.6.5
v1.6.6
v1.6.7
v1.6.8
v1.6.9
v1.7.0
v1.7.1
v1.7.10
v1.7.2
v1.7.3
v1.7.4
v1.7.5
v1.7.6
v1.7.7
v1.7.8
v1.7.9
v1.8.0
v1.8.1
v1.8.10
v1.8.11
v1.8.2
v1.8.3
v1.8.4
v1.8.5
v1.8.6
v1.8.7
v1.8.8
v1.8.9
v1.9.0
v1.9.1
v1.9.2
v1.9.3
v1.9.4
v1.9.5
v1.9.6
v1.9.7
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.0.3
v2.0.4
v2.0.5
v2.1.0
v2.1.1
v2.1.2
v2.1.3
v2.1.4
v2.1.5
v2.1.6
v2.1.7
v2.1.8
v2.2.0
v2.2.1
v2.2.2
v2.2.3
v2.2.4
v2.2.5
v2.2.6
v2.3.0
v2.3.1
v2.3.10
v2.3.2
v2.3.3
v2.3.4
v2.3.5
v2.3.6
v2.3.7
v2.3.8
v2.3.9
v2.4.0
v2.4.1
v2.4.2
v2.4.3
v2.4.4
v2.4.5
v2.5.0
v2.5.1
v2.5.2
v2.5.3
v2.5.4
v2.5.5
v2.6.0
v2.6.1
v2.6.2
v2.6.3
v2.6.4
v2.6.5
v2.6.6
v2.6.7
v2.7.0
v2.7.1
v2.7.2
v2.7.3
v2.7.4
v2.7.5
v2.7.6
v2.7.7
v2.8.0.beta1
v2.8.0.beta2
v2.8.0.beta3
v2.8.0.beta4
v2.8.0.beta5
v2.8.0.beta6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41095.json"